28642ab10d
This evolves the API from 2.x (and breaks it). Playback devices are now separate from the samples themselves. This allows for greater playback flexibility. Two sample sources are audioio.RawSample and audioio.WaveFile. They can both be mono or stereo. They can be output to audioio.AudioOut or audiobusio.I2SOut. Internally, the dma tracking has changed from a TC counting block transfers to an interrupt generated by the block event sent to the EVSYS. This reduces the overhead of each DMA transfer so multiple can occure without using up TCs. Fixes #652. Fixes #522. Huge progress on #263
74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/audioio/__init__.h"
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#include "shared-bindings/audioio/AudioOut.h"
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#include "shared-bindings/audioio/WaveFile.h"
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//| :mod:`audioio` --- Support for audio input and output
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//| ======================================================
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//|
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//| .. module:: audioio
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//| :synopsis: Support for audio input and output
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//| :platform: SAMD21
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//|
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//| The `audioio` module contains classes to provide access to audio IO.
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//|
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//| Libraries
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//|
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//| .. toctree::
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//| :maxdepth: 3
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//|
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//| AudioOut
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//| RawSample
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//| WaveFile
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//|
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//| All classes change hardware state and should be deinitialized when they
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//| are no longer needed if the program continues after use. To do so, either
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//| call :py:meth:`!deinit` or use a context manager. See
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//| :ref:`lifetime-and-contextmanagers` for more info.
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//|
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STATIC const mp_rom_map_elem_t audioio_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_audioio) },
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{ MP_ROM_QSTR(MP_QSTR_AudioOut), MP_ROM_PTR(&audioio_audioout_type) },
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{ MP_ROM_QSTR(MP_QSTR_RawSample), MP_ROM_PTR(&audioio_rawsample_type) },
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{ MP_ROM_QSTR(MP_QSTR_WaveFile), MP_ROM_PTR(&audioio_wavefile_type) },
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};
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STATIC MP_DEFINE_CONST_DICT(audioio_module_globals, audioio_module_globals_table);
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const mp_obj_module_t audioio_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t*)&audioio_module_globals,
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};
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